Question

Plz answer these plz i failing math

Answer 1

Gauge 4 I am pretty sure

Answer 2

Let's call the grade on the final x. It counts double, so this is like five tests, two of which score x. The average is the sum of the 5 divided by 5, and that has to equal 80:

$80 = \frac 1 5( 94 + 68 + 88 + x + x)$

$400 = 250 + 2x$

$150 = 2x$

$x = 75$

Answer: 75

Check:

$\frac 1 5( 94 + 68 + 88 + 75 + 75 ) = \frac 1 5(400) = 80 \quad\checkmark$